Effect of post-weaning growth rate on carcass traits and meat quality of Nellore cattle

Silva, L.H.P.; Paulino, Pedro Veiga Rodrigues; Assis, Gutierrez J.F.; Assis, Débora E.F.; Estrada, Mauricio; Silva, Matheus C.; Silva, Jaqueline Carmo; Martins, Tereza Silva; Filho, Sebastião de Campos Valadares; Paulino, Mário Fonseca; Chizzotti, Antônio

doi:10.1016/j.meatsci.2016.10.005

Cited by 23 publications

(10 citation statements)

References 33 publications

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“…replacing the existing (older) collagen with a newly synthesised (more soluble) collagen) In the present study, if an alteration in collagen structure occurred during the period of relative nutritional restriction it was reversed during the subsequent grazing and finishing periods as there were no significant differences in total collagen of the proportion of soluble collagen. Silva et al (2017) reported a similar finding for Nellore bulls grown at different rates post-weaning but offered a high concentrate ration prior to slaughter.…”

Section: Discussionsupporting

confidence: 64%

Compositional, organoleptic, metabolic enzyme activity and fibre characteristics of muscle from bulls with different growth paths to a common carcass weight

et al. 2018

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The proximate composition, organoleptic quality, metabolic enzyme activity and fibre characteristics of longissimus thoracis muscle from suckler bulls assigned to three target indoor winter (from 9 to 13 months of age approximately) growth rates (average daily gain of 0.6, 1.0 and 1.5 kg; n = 14/group) were investigated. The feeding regimes to achieve the target average daily gains were 2, 4 and 6 kg of concentrate respectively, plus grass silage ad libitum. The duration of the winter feeding period was 123 days, after which bulls were turned out to pasture and grazed for 99 days before re-housing and finishing on concentrates ad libitum plus grass silage until they reached a liveweight to yield a target carcass weight of 380 kg. The average daily gain during the grazing period was higher (P < 0.001) for the 0.6 than for the 1.0 and 1.5 average daily-gain groups, which did not differ. Proximate composition, collagen content, metabolic enzyme activity and fibre-type distribution of the longissimus thoracis muscle were similar (P > 0.05) between the 0.6, 1.0 and 1.5 average daily-gain groups. Apart from tenderness, which was rated higher (P < 0.05) for the 0.6 group than for the 1.0 average daily-gain group, the sensory characteristics of the beef were not influenced by the different winter growth rates applied. Overall, restricting the growth rate during winter had little effect on subsequent beef appearance or eating quality.

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Section: Discussionsupporting

confidence: 64%

Compositional, organoleptic, metabolic enzyme activity and fibre characteristics of muscle from bulls with different growth paths to a common carcass weight

et al. 2018

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“…Similar results were also presented by Biswas, Tandon, and Sharma (), Naveena et al (), and Li et al () who also observed a significant increasing trend in the MFI of different muscles during aging. The MFI, which is related to the postmortem proteolysis of myofibrillar proteins, correlates positively with meat tenderness (Silva et al, ). It is believed to be a good indicator of the extent of the postmortem proteolysis in meat (Ngapo & Vachon, ) and is strongly correlated with shear force and postmortem sensory tenderness (Li et al, ; Rajagopal & Oommen, ).…”

Section: Resultsmentioning

confidence: 99%

“…Originally described by Culler, Parrish, Smith, and Cross (), the method was modified as described by Hopkins, Martin, and Gilmour () and Silva et al (). Duplicate 0.5‐g samples of the muscle were taken and sliced along the fiber direction avoiding any connective tissue or visible fat.…”

Section: Methodsmentioning

confidence: 99%

Calpain activity, myofibrillar protein profile, and physicochemical properties of beef Semimembranosus and Biceps femoris from culled dairy cows during aging

Bhat

Morton

Mason

et al. 2018

J Food Process Preserv

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The present study was conducted to elucidate the changes in the calpain activity, protein profile, and physicochemical properties of cold‐boned muscles from culled dairy cows during aging. Semimembranosus and Biceps femoris were used as the study model and were vacuum packaged and stored for 14 days at 4 ± 1°C. The samples were analyzed for pH, shear force, myofibrillar fragmentation index (MFI), calpain activity, and myofibrillar protein profile (1D‐SDS‐PAGE). A significant (p < 0.05) effect of aging was observed on the pH, shear force, and MFI of both the muscles. Casein zymography results indicated the presence of intact and autolyzed forms of calpain 1 and calpain 2. An increase in autolysis of the calpains and proteolysis was observed in both the muscles during aging. Aging for two weeks was effective (p < 0.05) in reducing the shear force of both the muscles by 30%; however, the aged muscles were still excessively tough. Practical applications Information is seldom available in the literature about the effect of aging on the calpain activity of the muscles from older animals, such as culled dairy cows, and the subsequent tenderization of such muscles during aging. An analysis of the changes in the proteins and activity of calpains during aging gives us an understanding of the biological basis of the changes in the tenderness of muscles. Tenderness of beef is considerably determined by the activity of the calpains and the changes in the myofibrillar proteins during aging. The results of the present study should be useful to the meat industry for predicting the beef quality, particularly the tenderness of the muscles from culled dairy animals during the aging process. Aging alone was not effective in tenderizing the muscles and other tenderization interventions are required in conjunction with aging, such as nonthermal technologies, to reduce the extra toughness associated with the muscles of culled dairy animals.

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“…The shear force was determined following the procedures described by Lacerda et al (2021), while the Myo brillar fragmentation index was obtained as suggested by Culler et al (1978), with modi cations proposed by Hopkins et al (2004). Sarcomere length was determined by using laser diffraction (indirect method), following the procedure described by Silva et al (2017).…”

Section: Longissimus Muscle Processing and Meat Quality Evaluationmentioning

confidence: 99%

Carcass Traits, Meat Characteristics, and Economic Viability of Grazing Nellore Cattle Produced Under Different Supplementation Strategies in the Tropics

Ramos

Vargas

Diniz

et al. 2021

Preprint

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This study explored the effects of different supplementation strategies in the dry and rainy seasons in the tropics on the carcass traits, meat quality, and economic viability of Nellore cattle produced under grazing conditions. For this purpose, twenty-eight non-castrated male animals (18 months) with an initial body weight of 327.93 ± 4.22 kg were used. The animals were equitably distributed in a randomized complete design thorough four supplementation strategies as follows: i) mineral supplementation (MS) in both dry and rainy seasons (MS/MS), ii) MS in the dry season and concentrate supplementation (CS) in the rainy season (MS/CS), iii) CS in the dry season and MS in the rainy season (CS/MS), and iv) CS in both dry and rainy seasons (CS/CS). Thereafter, carcass traits, primary carcass cut yields, meat quality traits, chemical composition of meat, and economic viability of cattle production across different supplementation strategies were determined. Data revealed that animals under CS/CS showed the greatest (P < 0.01) hot carcass weights among the other supplementation strategies evaluated. Conversely, supplementation strategy did not affect (P > 0.05) carcass traits (the ribeye area, final pH, and forequarter), meat quality traits (shear force, myofibrillar fragment index, sarcomere length, and color), and meat chemical composition (crude protein, fat, and moisture) of the animals. The effective operational cost, total cost, gross revenue, and profit of animals under CS/CS showed the greatest values, whereas the lowest ones were obtained for the animals under MS/MS. In conclusion, data suggest that concentrate supplementation during at least one season (dry or rainy) produces similar meat quality traits and chemical composition of meat, but different hot carcass weight, backfat thickness and hindquarter proportion to those observed when animals were supplemented with concentrate in both seasons. Additionally, CS/CS animals, despite having a higher total cost, have greater profitability when raised in tropical pasture.

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Effect of post-weaning growth rate on carcass traits and meat quality of Nellore cattle

Cited by 23 publications

References 33 publications

Compositional, organoleptic, metabolic enzyme activity and fibre characteristics of muscle from bulls with different growth paths to a common carcass weight

Compositional, organoleptic, metabolic enzyme activity and fibre characteristics of muscle from bulls with different growth paths to a common carcass weight

Calpain activity, myofibrillar protein profile, and physicochemical properties of beef Semimembranosus and Biceps femoris from culled dairy cows during aging

Carcass Traits, Meat Characteristics, and Economic Viability of Grazing Nellore Cattle Produced Under Different Supplementation Strategies in the Tropics

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